Strange behavior with timestamptz - Mailing list pgsql-sql

From George Weaver
Subject Strange behavior with timestamptz
Date
Msg-id 006801c36b35$524ecac0$4f0da18e@cleartag
Whole thread Raw
Responses Re: Strange behavior with timestamptz  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-sql
Hi Everyone,
 
I have a situation where two tables have a "Created" field defined as follows:
 
table seedlot             "created  timestamptz  DEFAULT now(), "
 
table transaction        "created  timestamptz  NOT NULL  DEFAULT now(),"
 
The transaction table records when a seedlot record is created, with both events happening in the same plpgsql function.  The seedlot record is created first, with the transaction table being updated later in the procedure.
 
Seedlot 153 was received on August 11 with the following result:
 
base=# select created from seedlot where syslotid=153;
        created
------------------------
 2003-11-08 12:13:39-06
(1 row)
 
base=# select created from transaction where syslotid=153 and transactiontypeid=22;
        created
------------------------
 2003-08-11 12:13:39-05
(1 row)
 
Does anyone have any idea why the default for seedlot recorded the time with the day and month switched, resulting in the seedlot record being stamped Nov 8, 2003 while the transaction was stamped correctly as Aug 11, 2003?
 
In the same function a number of other records are created and timestamped.  In all cases where the table definition statement does not include NOT NULL, the time was stamped with the day and month reversed.
 
However! Two of the tables define created thus:
 
  "created  timestamptz   DEFAULT now() NOT NULL,"
 
but still ended up with the day and month being switched.
 
The transaction record is the last one in the procedure to be created.
 
I am using version 7.3.2.
 
I hope I'm not missing something obvious...
 
Thanks for your help,
George

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